Hardinge B162A DD300 Direct-Drive Rotary Table User Manual
Contents
1. Hardinge Inc 20122. a true 4th axis Positioning of the workpiece is accomplished by using the appropriate position preparatory feedrate and M codes just like a regular axis The DD300 can only be used integrated as an axis to a machine It is not available with a standalone servo control It can be mounted in the horizontal position or in some cases vertically for face and end working applications The Rotary Table also has a spindle clamp to help assist the motor for off axis drilling and milling applications while maintaining a fixed position Advantages of the 16C DD300 Rotary Table e No Backlash e High Resolution Encoder Directly Mounted to Spindle e Long Life with Low Maintenance e Optimal repeatability and positioning accuracy The DD300 is offered with a 200 or 400 volt frameless wraparound rare earth permanent magnet torque motor and meets the most rigorous industry codes It has a horizontal spindle centerline of 7 00 177 8mm and has increased clearance for a large capacity of part sizes Cable connectors meet the IP 65 splash code that states that they can be sprayed with coolant Please note that the system cannot be submerged The spindle is hardened and ground for accuracy and has a special rigid crossed roller bearing coupled with a rigid cylindrical roller bearing to support heavy cutting forces The system is designed with a series of appropriate sealing systems including a bearing seal to provide a longer bearing life and a front cap seal with air p
3. part weighing 5 Ibs at a distance of 6 inches from the center of the spindle would require 30 in Ibs or 2 5 ft lbs of torque to rotate See examples below for light parts that have high inertia Note Larger inertial loads may require changing a few motor parameters to get the unit to run properly If assistance is needed in calculating inertia torque or changing parameters please contact your local Hardinge representative Inertia vs Weight vs Required Torque to Spin Part i pr AXIS OF ROTATION N N h OF ROTATION Example A Example B Material Steel Material Steel Weight 5 3 Ibs 2 4 kg Weight 2 5 Ibs I 1 kg Inertia about axis of Rotation 2 7 Ib in Inertia about axis of Rotation 17 8 Ib in 0 0008 kg m 0 008 kg m Torque required to hold Balanced Part in position Torque required to hold Unbalanced Part N A Balanced in position 7 5 in Ibs 0 85 Nm Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A Example A is a balanced part which is approximately twice as heavy as Example B which is an unbalanced part Notice that since Example A is balanced the torque required to hold the part in position is negligible and its moment of inertia is very low Since Example B is unbalanced its moment of inertia is about 10 times larger than Example A even though it we
4. slots of the machine table This will give quick parallel alignment that will be close enough for most jobs Alternative Passbohrungen _7 f r Vertikalbearbeitung 3 Routine Maintenance 3 1 Use of Oil and Water Soluble Coolants For the use of oil and water soluble coolants the following guidelines should be observed e DO NOT SUBMERGE THE UNIT IN COOLANTS To the extent possible direct the coolant lines to the workpiece as opposed to directly upon the spindle seal area Avoid high pressure coolant applications where the pressure is above 200 psi Some machining centers provide flood coolant at enormous rates so that the head is practically submerged Throttle the flow back to appropriately match the application e Inspect the cables and gaskets regularly for cuts or swelling Damage must be repaired immediately 3 2 Clean Up At the end of the workday or shift it is important to clean the Rotary Table The head should be free of any chips or grime Clean with a chip brush and apply a coat of rust preventative Do not use an air gun around front or rear seals Chips may damage the seals if blown in with an air gun 3 3 Collet Key Replacement Remove the set screw in the collet key access hole located on the spindle and then remove the old collet key from the face of the spindle with a 3mm Allen wrench Replace the collet key with Hardinge P N CJ 000028416C only using pipe sealant or thread Loctite 242 when installing Screw
5. the collet key into the spindle until it begins to protrude into the inside diameter of the spindle and turn until flat on bottom of key is parallel to spindle centerline Place a new Hardinge collet into the spindle to test if key depth is adequate Remove collet and adjust key until a proper fit is achieved NOTE When using collet type workholding never run the spindle without the collet key having been properly installed Failure to do this may cause the collet to rotate in the spindle and possibly cause some level of damage 4 One Year Limited Warranty The Hardinge DD300 Rotary Table is provided with a one year warranty against any defects in material and workmanship Specific details of the warranty can be found in the Hardinge Terms and Conditions document associated with the purchase agreement Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 Hardinge Inc One Hardinge Drive P O Box 1507 Elmira New York 14902 1507 USA USA 800 843 8801 Canada 800 468 5946 Fax 607 734 3886 To Order Online www shophardinge com Corporate Homepage www hardinge com E mail info shophardinge com Live Online Support www shophardinge com All specifications are subject to change without notice due to ongoing continuous improvement All marks indicated by and are trademarks of Hardinge Inc Instruction Manual B 162A e Litho in USA
6. vertical position The air pressure can be adjusted to achieve different drawbar forces out of the collet closer as shown in the chart NOTE Do not supply the collet closer with more than 100 psi of air pressure 2 4 Removing the DD300 Collet Closer Air collet closers fitted at the factory are not intended to be removed However if servicing is required the following instructions can be used to remove the collet closer First remove all workholding from the unit spindle Remove air from closer and activate the valve to relieve internal air pressure Then remove the four M6 bolts on the back of the bolster that hold the sheet metal anti rotation bracket in place Remove the nine M6 bolts that go through the collet closer body which hold the closer to the unit Stick a brass rod down the center of the spindle from the front of the unit and locate the end of the brass rod on the end of the collet closer drawtube Lightly tap the end of the brass rod while moving it around the face of the drawtube until the closer is fully disengaged from the adapter plate at which time it can be removed from the unit A second person may be required to support the closer while this is being done Once removed from the unit the closer piston will be visible Be sure not to allow any chips or debris to get in the piston area of the collet closer If access to the rear of the DD300 is needed remove the four M6 bolts that hold the adapter plate to the spindle
7. 5 days 2 from standard GE Fanuc H104 amplifier 3 will vary according to motor requirements of the 4th axis interface Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com 10 Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A 1 8 Dimensions DD300 Rotary Table 51 13 7 177 8 001 4 025 14 25 362 0 gt 15 92 404 3 Alternative Passbohrungen f r Vertikalbearbeitung 18mm Passbohrung f r schnelleres Ausrichten 4 0003 101 6 0076 18 11 460 1 Vorw rts _ gt 18 74 475 9 Zur rk Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 12 BRS HARDINgE DD300 Rotary Table User Manual B 162A 2 Setting Up 2 1 General Setup Fill out the warranty information by visiting www hardinge com rotarywarranty on the internet 2 Place the Rotary Table on the machine Route the cable from the head so that it avoids tool changers and table edges Cable slack must be provided for your machine s movements If the cable is cut the motor or feed back system could fail prematurely Replace a damaged cable immediately Secure the Rotary Table to the machine s T slot table as shown below upright or on its back A special mounting plate will be needed to mount the unit on its back T nut packag
8. BRS HARDINgE DD300 Rotary Table User Manual B 162A Setup and Operation for the Hardinge DD300 Direct Drive Rotary Table Original U S A Instructions Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 162A Thank you for purchasing a Hardinge DD300 Direct Drive Rotary Table This User s Manual is provided to assist you with setup procedures and to familiarize you with the features specifications and maintenance recommendations of your unit The mechanical head can be maintained by the customer with proper cleaning and maintenance Any necessary repairs required during the warranty period will be made at Hardinge Inc or by a factory authorized representative For best workholding results with this rotary table Hardinge recommends Hardinge brand collets 16C workholding products step chucks and expanding collets Hardinge Inc One Hardinge Drive Elmira New York 14902 1507 U S A p 800 843 8801 or 607 378 4022 p 800 468 5946 Canada f 607 734 3886 Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A Table of Contents Safety Recommendations spesies eeaeee iN E shades he eek E A E 4 Introdu
9. Chucks and face plates utilize the A2 5 spindle nose on the rotary table Always make sure that the spindle and chuck or face plate are free of dirt and chips Align the chuck draw tube keyway with the spindle collet key and slide the chuck onto the spindle Turn the collet closer drawtube to engage the chuck Push the chuck tight to the spindle and tighten the chuck mounting bolts to the proper torque indicated in your chuck installation manual Use the collet closer drawtube to adjust the chuck for proper stroke required for ID and OD gripping Since the A2 5 spindle nose is such a tight tapered fit a face plate or 3 jaw chuck may be difficult to remove from the spindle even after the bolts are removed If this happens support the face plate or 3 jaw chuck with a hoist and lightly strike the outside diameter of the face plate or 3 jaw chuck with a piece of brass a plastic hammer or a rubber hammer so that nothing is damaged NOTE A hoist may be required to mount a 3 jaw chuck depending on the size of the chuck 2 3 DD300 Collet Closer Optional The DD300 collet closer has a 687 42 8mm through DD300 Collet Closer hole design with pneumatic open and close The FORCE CHART through hole can be used for through spindle coolant or for holding long parts The pneumatic closer has Air Pressure Drawbar Force 625 15 87mm of stroke which allows the use of power psi Ibs chucks With the collet closer installed the unit cannot be mounted in the
10. Spindle Nose Collets Spindle Center to Base inch mm Indexing Accuracy arc sec Repeatability arc sec Resolution arc sec Max Rotation Step 4th axis degree Motor Rare Earth Permanent Magnet Torque Motor Maximum Peak Torque ft Ib Nm Continuous Torque Air Cooled ft Ib Nm Continuous Torque Water Cooled ft Ib Nm Operating Specifications Duty Cycle Operating Temperature max ambient Power Rating Oil Requirements Collet Closer Air Requirements psi bar Clamp Air Requirements psi bar Weight Rotary Table Ib kg Workholding Collets round max capacity in mm Collets Hex max capacity in mm Collets Square max capacity in mm Step Chucks max capacity in mm 3 Jaw Chucks diameter Sure Grip Expanding Collets in mm Fixture Plate Collet Style diameter Fixture Plate Spindle Mount diameter Slotted Face Plate diameter Collet Stops part positioning RS HARDINgE 275 373 0 0002 0 250 with a 40 amp Fanuc Drive Amplifier 0 001 to 1500 A2 5 16C Standard 16C 7 000 0 001 177 8 0 0254 3 2 077 99999 999 400 542 68 93 131 177 100 at full speed 104 F 40 C Varies No Oil 100 6 9 maximum 85min 00max 5 9min 6 9max 300 136 1 3 41 27 13 32 35 71 64 28 97 up to 6 152 4 5 6 8 and 10 g 4 3 17 101 60 63 3 161 92 5 139 7 87 s 225 42 87 s 225 42 10 254 00 12 305 YES continuous torque available 24 7 36
11. XCEED the rated capacity of the equipment DON T LEAVE the equipment unattended while it is operating DON T CLEAN the equipment with an air hose KEEP TOTE PANS a safe distance from the machine Don t overfill the tote pans DON T LET STOCK project past the back end of the collet closer or equipment spindle without being adequately covered and properly supported UNLESS OTHERWISE NOTED all operating and maintenance procedures are to be performed by one person To avoid injury to yourself and others be sure that all personnel are clear of the equipment when opening or closing the coolant guard door and any access covers FOR YOUR PROTECTION WORK SAFELY DON T OPERATE THE EQUIPMENT with damaged or worn electrical cables VERIFY that the electrical cables are not restrained or pinched during full travel movement of the machine Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A Introduction 1 Basic Description The Hardinge DD300 Rotary Table is ideal for rapid and accurate positioning of large parts in machining operations such as milling drilling tapping contouring and spiral milling The Hardinge DD300 Rotary Table is a rigid high accuracy programmable rotary positioning device The mechanical head holds the workpiece and is controlled by a machine control as
12. ance personnel REMOVE CHUCK WRENCHES before starting the unit or the machine BEFORE PRESSING THE CYCLE START PUSH BUTTON make certain that proper functions are programmed and that all controls are set in the desired modes KNOW WHERE ALL STOP push buttons are located in case of an emergency MAKE CERTAIN that all guards are in good condition and are functioning properly before operating the equipment INSPECT ALL SAFETY DEVICES AND GUARDS to make certain that they are in good condition and are functioning properly before the cycle is started CHECK THE POSITION of any load unload automation before pressing the Cycle Start push button CHECK SETUP TOOLING AND SECURITY OF THE WORKPIECE if the machine has been OFF for any length of time DRY CYCLE a new setup to check for programming errors MAKE CERTAIN that you are clear of any pinch point created by moving slides before starting the machine DON T OPERATE any equipment while any part of the body is in the proximity of a potentially hazardous area DON T REMOVE CHIPS with hands Use a hook or similar device and make certain that all machine movements have ceased BE CAREFUL of sharp edges when handling a newly machined workpiece DON T REMOVE OR LOAD a workpiece while any part of the equipment is in motion DON T OPERATE ANY EQUIPMENT while wearing rings watches jewelry loose clothing neckties or long hair not contained by a net or shop cap DON T ADJUST tooling or co
13. and carefully remove the adapter plate CAUTION The DD300 Collet Closer relies on air pressure to maintain clamping force and is released upon the removal of the air pressure Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com 14 Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 162A 9 M6 BOLTS ANTI ROTATION BRACKET ADAPTER 4 M6 BOLTS ADAPTER PLATE Part No BA 0009500 0162 Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com 15 RS HARDINgE DD300 Rotary Table User Manual B 162A 2 5 Use of Collets with the Hardinge Collet Closer NOTE All collets must be free from burrs and in good condition Collet Installation for the Collet Closer To install a collet first make sure that the closer is in the forward position Loosen the three M6 bolts on the back of the drawtube handle until they are fully disengaged from the closer piston These bolts will not fall out of the drawtube as there is a snap ring in the counter bore of each clearance hole Next align the collet keyway with the spindle key and insert the collet while turning the draw tube handle to engage the collet Turn the draw tube handle until the collet grips the part and then back off approximately turn This will be a good starting point for fine tuning the grip range The collet sh
14. ction lel Basie Deserjption anne se ER nie 7 l 2 Stendardspinde Clamp sauer 7 Ld SY Stittness Overall System u Bee ind 8 et Machmable Part Sye un este I esta aueeeaeinerte nd 8 is Features anne re 9 wo Motor Thermostat sauer asien 9 lie Specifieations sie atch ious 10 ke Dimensions esse er er eee sue E omnes I 2 Setup ZA General Setup sorrara E EEE E E E E 12 2 2 Use of Collets Sure Grip Expanding Collets Sure Grip 3 Jaw Power Chucks and Face Plates wen ee Beer 12 23 DD200 Colet Closer Optional use Morteumbersanonshthexesa 12 24 Removing heColleeEloser zus 12 2 5 Use of Collets with the Hardinge Collet Closer 22sssssssseseennnnnnnnnnennnnnnnnnnee nennen 16 Zio Iooling Locations a T E I7 3 Routine Maintenance 3 1 Use of Oil and Water Soluble Coolants ssenssensssesserssserssersssersseessseeseressereserssseee I7 3 2 CEV UD aeara a ee ee ae 17 33 Kollet Key Replacement sense ern 17 4 One Year Limited Warranty san rer I7 Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 RS HARDINgE DD300 Rotary Table User Manual B 162A Safety Recommendations READ COMPLETE INSTRUCTIONS CAREFULLY BEFORE OPERATING THIS UNIT Note Equipment refers to the Rotary Table and or machine it is used with When this instruction book was printed the information given was current However
15. e if unit is equipped with a pneumatic collet closer QUICK DISCONNECT FITTINGS Back of DD300 with Collet Closer Back of DD300 without Collet Closer 7 Connect air to the quick disconnect fitting on the cable side of the Rotary Table if unit is not equipped with a pneumatic collet closer 8 Save the packing materials in case you need to ship the unit 9 At the end of the workday or shift it is important to clean the Rotary Table The unit should be free of any chips or grime Clean with a chip brush and apply a coat of rust preventative CAUTION Do not use an air gun around the front or rear seals Chips may damage the seal if blown in with an air gun NOTE Prior to powering on the unit read and understand the entire 4th axis manual 10 Initialization and homing of the unit is explained in the 4th axis manuals Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 13 BRS HARDINgE DD300 Rotary Table User Manual B 62A 2 2 Use of Collets Sure Grip Expanding Collets Sure Grip 3 Jaw Power Chucks and Face Plates The unit accepts standard Hardinge 16C collets step chucks ID gripping collets chucks and face plates When insert ing the collet align the keyway on the collet with the key inside the spindle Push the collet in and turn the collet closer drawbar clockwise until proper collet tightness is obtained
16. es are available for purchase for various I slot tables Kit includes 2 T nuts 2 bolts and 2 flat washers Check to verify that all clearances are satisfied in full machine axis movements and that there is no possibility of a collision NOTE End user is responsible for properly routing cable Hardinge accepts no responsibility for damages in cabling resulting from improper installation 3 Place the DD300 in an area free from chips and coolant where air can circulate freely Do not let chips pile up over the unit as this would prevent proper cooling 4 Connect the DD300 to the machine by making the appropriate connections in the machine canopy wire way in accordance to the 4th axis manual supplied with the mechanical unit CAUTION Never connect or disconnect these cables with the power on Instant failure will result 5 Connect a minimum of 85psi and maximum of 00psi of dry filtered air to the fitting in the machine wireway This will supply air to the spindle clamp CAUTION Never attempt to operate the DD300 without the minimum of 85psi and maximum of 0Opsi of dry filtered air connected to the air fitting or mechanical damage will occur Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 162A 6 Connect air to the quick disconnect fitting on the back of the rotary tabl
17. ighs about half as much Note that torque is required to hold Example B in position 1 5 Features RIGID DESIGN A large precision crossed roller bearing coupled with a tapered bore cylindrical roller bearing will support heavy cutting forces on medium to large parts HARDENED AND GROUND SPINDLE Typical of the accurate long life of Hardinge lathe spindles WRAPAROUND RARE EARTH PERMANENT MAGNET TORQUE MOTOR For very precise high speed indexing with no backlash and high repeatability RESOLUTION Standard resolution of 00 degrees VARIABLE FEED RATES Variable from 001 deg sec to 1500 deg sec ONE YEAR WARRANTY The Hardinge DD300 Rotary Table is provided with a one year warranty against any defects in material and workmanship 1 6 Motor Thermostat The motor is equipped with a thermostat that monitors the internal temperature in the motor windings The thermostat is set to open at 85 degrees C This is done to protect the electrical components located inside the unit The thermostat is wired into the machine control so that operation above the set temperature will cause an over temperature fault to occur Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 DD300 Rotary Table User Manual B 62A 1 7 Specifications Spindle Clamping Torque ft Ib Nm Runout Max TIR Backlash arc sec Maximum RPM Rotational Speed degrees sec
18. maintenance of the equipment Make certain that you understand all instructions DO NOT ALLOW the operation or repair of equipment by untrained personnel CONSULT YOUR SUPERVISOR when in doubt as to the correct way to do a job WEAR SAFETY GLASSES AND PROPER FOOT PROTECTION at all times When necessary wear respirator helmet gloves and ear muffs or plugs DON T OPERATE EQUIPMENT unless proper maintenance has been regularly performed and the equipment is known to be in good working order WARNING or INSTRUCTION TAGS are mounted on the unit for your safety and information Do not remove them or damage them DO NOT ALTER THE EQUIPMENT to bypass any interlock overload disconnect or other safety device DO NOT OPERATE EQUIPMENT if unusual or excessive heat noise smoke or vibration occurs Report any excessive or unusual vibration sounds smoke or heat as well as any damaged parts LIFTING AND HANDLING OF THE UNIT should be done with full knowledge of the unit weight and using proper procedures MAKE CERTAIN that the equipment is properly grounded Consult National Electric Code and all local codes REMOVE POWER from the unit by unplugging the power cord before attempting repair or maintenance Where Applicable DON T OPEN THE CONTROL BOX without consulting with Hardinge Where Applicable DON T TOUCH ELECTRICAL EQUIPMENT when hands are wet or when standing on a wet surface Where Applicable REPLACE BLOWN FUSES with f
19. olant hoses while the equipment is running DON T LEAVE tools workpieces or other loose items where they can come in contact with a moving component of the equipment DON T CHECK finishes or dimensions of workpiece near running spindle or moving slides DON T JOG SPINDLE in either direction when checking threads with a thread gage DON T ATTEMPT to brake or slow the equipment with hands or any makeshift device ANY ATTACHMENT TOOL OR MACHINE MODIFICATION not obtained from Hardinge Inc must be reviewed by a qualified safety engineer before installation Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 RS HARDINgE DD300 Rotary Table User Manual B 162A Safety Recommendations USE CAUTION around exposed mechanisms and tooling especially when setting up Be careful of sharp edges on tools DON T USE worn or defective hand tools Use the proper size and type for the job being performed USE ONLY a soft faced hammer on tooling and fixtures DON T USE worn or broken tooling on machine MAKE CERTAIN that all tool mounting surfaces are clean before mounting tools INSPECT ALL CHUCKING DEVICES daily to make certain that they are in good operating condition Replace any defective chuck before operating the machine USE MAXIMUM ALLOWABLE gripping pressure on the chuck Consider weight shape and balance of the workpiece DON T E
20. ould be adjusted with the drawtube handle as shown in the following graphic Once properly adjusted tighten up the three M6 bolts on the back of the handle to 10 ft lbs before actuating the closer COLLET 3 M6 BOLTS DRAWTUBE HANDLE If the Collet is Sticking NOTE To prevent excessive wear and collet sticking make sure collets are in good condition and free from burrs A light coat of Molybdenum grease on the collet wear surfaces will extend the life of the spindle and or collet and help prevent sticking especially when operating dry Emergency collets are soft and are not recommended for long production runs These collets will stick after prolonged use Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com 16 Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A 2 6 Tooling Locations The DD300 Direct Drive Rotary Table is equipped with tooling points on the under side of the unit in order to speed ne setups One of the most time consuming Ausrichten procedures in setup operations is aligning the head with the table On the mounting surfaces there are two 0 500 12 7mm 1251 bored holes on 4 000 101 6mm centers 318 The holes on the bottom surface are parallel to the spindle within 0 001 0 25mm per 6 inches 152 4mm Locating buttons are 4 0003 101 6 0076 bolted in the holes and used for alignment in the
21. since we are constantly improv ing the design of our products it is possible that the illustrations and descriptions may vary from the current unit WARNING Occupational Safety and Health Administration OSHA Hazard Communication Standard 19 10 1200 effective May 25 1986 and various state employee right to know laws require that information regarding chemicals used with this equipment be supplied to you Refer to the applicable section of the Material Safety Data Sheets supplied with your unit when handling storing or disposing of chemicals HARDINGE SAFETY RECOMMENDATIONS Your Hardinge machine is designed and built for maximum ease and safety of operation However some previously accepted shop practices may not reflect current safety regulations and procedures and should be re examined to insure compliance with the current safety and health standards Hardinge Inc recommends that all shop supervisors maintenance personnel and machine tool operators be advised of the importance of safe maintenance setup and operation of Hardinge built equipment Our recommendations are described below READ THESE SAFETY RECOMMENDATIONS BEFORE PROCEEDING ANY FURTHER ANYONE HAVING ACTIVE IMPLANTS pacemakers or having any other ferromagnetic prosthesis is not qualified to work with these kinds of devices or to approach them Keep at a safe distance from the motor READ THE APPROPRIATE MANUAL OR INSTRUCTIONS before attempting operation or
22. the Bridgeport machines the clamp ON OFF functions are fully controlled There is a potential for a drop in air pressure if the air line supplying the Rotary Table with air is also supply ing something else like a tool changer with air If you receive a pressure switch alarm the first thing you should check is the air pressure supplied to the Rotary Table Please note that even a momentary drop in air pressure can create an alarm situation CAUTION Never attempt to defeat the clamp protection logic as this may result in an opportunity for the system to rotate when the clamp is engaged This will cause an overload fault and repeated attempts to operate in this manner may damage the clamp The machine system has been setup to post a message if rotation is attempted when the clamp is engaged The clamp requires a minimum of 85 psi and maximum of 100 psi OF DRY FILTERED AIR to fully release the spindle and must be supplied to the unit even if the clamp is not going to be used Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BRS HARDINgE DD300 Rotary Table User Manual B 62A 1 3 High Stiffness Overall System The DD300 is inherently stiff due to its construction with the robust housing and crossed roller bearing design Furthermore the direct drive motor offers a level of servo stiffness for the spindle that is superior to geared systems due to
23. the elimination of gear backlash and other system compliances The high servo gains supported by the high encoder resolution make a powerful combination for heavy contouring applications 1 4 Machinable Part Size The DD300 system is designed with a 16C spindle seat similar to the lathe spindle that Hardinge is noted for The DD300 has been designed for those parts that can be conveniently gripped in any of the 16C gripping systems that Hardinge is also noted for Typical parts are in the range of approximately 2 50 8mm in diameter and generally not longer than 6 152 4mm without the use of a tailstock It is typical to speak in terms of the L D ratio which is the length divided by the part diameter A 2 50 8mm diameter part 6 152 4mm long has an L D ratio of 3 1 Part pieces with larger L D ratios should be used with a tailstock up to a typical L D ratio of 6 1 Larger part sizes than those described above can be handled with additional support i e Tailstock Trunnion etc When talking about machinable part size inertia and torque play an important role and any part and fixture combina tion should not exceed the maximum inertia of 1 695 kg m This inertia should be calculated about the center of rotation of the DD300 because when a part s mass gets further from the center of rotation its inertia increases An unbalanced part should also not require a torque that exceeds the allowable torque of the motor shown in section 1 7 of this document A
24. urge Positioning of the spindle is accomplished through a wrap around rare earth permanent magnet torque motor that requires no mechanical gears This type of motor requires no maintenance and will provide many years of smooth operating performance with zero backlash The system is fitted with a means of external liquid cooling of the motor to increase the continuous torque The high resolution encoder is mounted directly to the DD300 spindle to insure the highest available accuracy The main spindle encoder ring has 6 384 lines which times 4 gives a native resolution of 65 536 counts per rev This can be further interpolated in the subsequent electronics Dependant upon the control system used the DD300 system encoder can yield a resolution of up to 16 777 216 counts per revolution 2 Standard Spindle Clamp The Rotary Table comes with a spindle clamp that is standard from the factory This clamp allows the spindle to handle cutting forces equal to 275 ft lb 373 Nm allowing for greater cutting forces in the fixed position mode of operation The unit contains an air sensor that will prevent indexing in the event that air pressure drops below 85 psi to the clamp so that damage is prevented Air is supplied to the clamp through the cable conduit and is connected to the machine air supply in the machine canopy wire way In this manner the single cable provides all utility requirements including air as mentioned Using the standard M codes provided on
25. uses of the same size and type as originally furnished Where Applicable ASCERTAIN AND CORRECT the cause of a shutdown caused by overload heaters before restarting the machine Where Applicable Hardinge Inc One Hardinge Drive Elmira New York U S A 14902 1507 800 843 8801 Canada 800 468 5946 www shophardinge com Part No BA 0009500 0162 BS HARDINgE DD300 Rotary Table User Manual B 62A Safety Recommendations KEEP THE AREA AROUND THE MACHINE well lit and dry KEEP CHEMICAL AND FLAMMABLE MATERIAL away from electrical or operating equipment HAVE THE CORRECT TYPE OF FIRE EXTINGUISHER handy when machining combustible material and keep chips clear of the work area DON T USE a toxic or flammable substance as a solvent cleaner or coolant MAKE CERTAIN THAT PROPER GUARDING is in place and that all doors to the primary machine are closed and secured DON T OPEN GUARD DOORS of the primary machine while any machine component is in motion MAKE SURE chucks closers fixture plates and all other spindle mounted workholding devices are properly mounted and secured before starting the unit or the machine MAKE CERTAIN all tools are securely clamped in position before starting the unit or the machine REMOVE ANY LOOSE PARTS OR TOOLS left on the unit or the machine or in the work area before operating the equipment Always check the machine and work area for loose tools and parts especially after work has been completed by mainten
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